Abstract: An airbag inflator includes non-azide gas generating propellants, surrounding an ignition device, disposed inside a housing. The gas generating propellants are surrounded by a coolant/filter device having a pressure loss of 0.3×10−2 to 1.5×10−2 kg/cm2 at a flow rate of 100 l/min/cm2. A space is provided between an outer periphery of the coolant/filter device and the housing such that the combustion gas passes through the entire area of the coolant/filter device. The coolant/filter device is also surrounded by a swell suppressing layer which prevents the coolant/filter device from swelling due to a combustion of the gas generating propellants.

Abstract: An organic hydroxyl compound is reacted with a phosphorylating agent comprising phosphorus pentaoxide and at least one compound selected from the group consisting of water, phosphoric acid and polyphosphoric acid and having a value represented by formula (I) of from 0.5 to 1.0, under such a condition that the ratio as defined by formula (II) has a value in the range of from 2.8 to 3.2; or alternatively, an organic hydroxyl compound is reacted with the above phosphorylating agent under such a condition that the ratio as defined by formula (II) has a value in the range of from exceeding 3.2 up to 6.4 and then phosphorus pentaoxide is added to the reaction product in such an amount that the ratio as defined by formula (II) has a value in the range of from 2.8 to 3.

Abstract: The present invention provides an air bag gas generator comprising a housing, an ignition means accommodation chamber defined in the said housing, a combustion chamber, a coolant/filter chamber, an ignition means provided inside said ignition means accommodation chamber, a canister provided in said combustion chamber and a coolant and a filter, provided in said coolant/filter chamber, is characterized in that another coolant is provided in said canister to cool said combustion gas and to collect combustion residue.

Abstract: The present invention relates to a gas generator for an air bag having a structure in which a location relationship between percussion caps and piercing pins can be determined accurately and relative movements of both the above parts can be prevented.